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octane

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noun oc·tane \ˈäk-ˌtān\

Simple Definition of octane

  • : a chemical in petroleum that is used to rate the quality of different kinds of gasoline

Source: Merriam-Webster's Learner's Dictionary

Full Definition of octane

  1. 1 :  any of several isomeric liquid alkanes C8H18

  2. 2 :  octane number

Examples of octane in a sentence

  1. an octane rating of 90



Origin of octane

International Scientific Vocabulary


First Known Use: circa 1872


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